Loom-shuttle



(No Model.)

A. ISHERWOOD.

LooM SHUTTLE.

No. 561,319. Patented June 2, 1896.; v

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I gin E8836 lJNTTED STATES PATENT OFFICE,

ALFRED ISHERXVOOD, OF NEW BEDFORD, MASSACHUSETTS.

LOOM-SHUTTLE.

SPECIFICATION forming part of Letters Patent No. 561,319, dated June 2,1896.

Application filed June 22, 1894. Serial No. 515,437. (No od l.)

To on whom it may concern:

Be it known that I, ALFRED ISHERWOOD, a citizen of the United States,residing at New Bedford, in the county of Bristol and State ofMassachusetts, have invented certain new and useful Improvements inLoom-Shuttles; and I do hereby declare the following to be a full,clear, and exact description of the invention, such'as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to weavin g, and more particularly to improvementsin the shuttles employed in this art.

The objects of my improvements are to produce a nut-lock employed uponthe bolt that supports the spring for holding the spindle, said lockbeing of such construction as to obviate the necessity of impairing orweakening the shuttle-stock by undue cutting away of the same; toprovide for an improved yielding support for the bobbin-catch, wherebycompensation is made for various sizes of bobbins, and so that thespindle will always remain in linewith the eye of the shuttle; to adaptthe shuttle to be used in connection with and to receive bothcop-filling and bobbinfilling, and to secure in position by a singlebolt both the spring for supporting the spindle and also thebobbin-catch, the parts being so constructed as to adapt the bolt toreceive a nut-look, whereby the spring mentioned performs the additionalfunction of serving to coact with the nut-lock, thus retaining thelatter in position upon the bolt.

WVith these objects in view my invention consists in certain features ofconstruction, hereinafter specified, and particularly pointed out in theclaims.

Referring to the drawings, Figure 1 is a longitudinal sectional view ofa shuttle embodying my invention, the spindle being shown as loweredinto the shuttle. Fig. 2 is a similar view of the spindle shown asraised. Fig. 3 is a detail in perspective of the restplate forsupporting the spindle; Fig. 4, details in perspective of thespindle-spring, its bolt, and the parts comprising the lock.

Like numerals of reference indicate like parts in all the figures of thedrawings.

1 designates the body portion of theshuttle, which has the usualexternal formation,

and the same is provided with the usual openingintermediate its ends forthe reception of the spindle and filling. The upper side of the bodyportion, at its rear end, is provided with an annular recess 2, and fromthe front and rear sides thereof radiate branches. The front branch ofthe recess is deeper than the annular recess and produces a slot 3.

Seated in the slot 3 is the rest-plate 4, the same being provided at itsrear end with a vertically-disposed neck 5, which terminates in arearwardly-disposed segmental head 6. The neck is seated in the rear endof the slot 3 and iscurved to conform therewith, while the head restswithin the annular recess 2, occupying the front portion of the latter.

The front end of the rest'plate 6 is provided with a transverse lug 6,and immediately in rear thereof the upper side of the rest-plate isprovided with a rounded groove or seat 7.

8 designates the spindle, and the same is provided at its rear or buttend with the head 9. The head 9 has formed upon its upper sideoppositely-disposed inclined faces 10 and 11, and its rear end isprovided with a depending flange or rib 12, which interlocks with thetransverse lug formed 011 the restplate, and, being rounded, fitsrotatably within the groove of said rest-plate. When the spindle islowered, itsrear face abuts directly against the front end of therest-plate, so that the two are interlocked, and the spindle ismaintained in alinement with the eye of the shuttle. Inasmuch as therest-plate is wholly within the slot 3 of the shuttle, that portion ofthe rear wall of the butt-end of the spindle not resting against therest-plate will abut against the rear wall of the shuttle-cavity,

this latter abutment serving-to materially aid in securing the desiredalinement.

Surmounting the rear end of the spindle and conforming to theconfiguration of the.

face 10. The center portion of the spring is enlarged annularly andprovided with a central opening 14, which is countersunk and providedwith a recess 15, the said opening corresponding with the verticalopening produced concentrically in the recess 2 and through the body ofthe shuttle. Through the opening in the spring and that in theshuttle-body is passed vertically a bolt 15, the head of which rests inthe countersunk recess formed in the opening of the spring. The lowerend of the bolt projects into an annular enlargement formed at the lowerend of the perforation in the shuttle-body, and terminates above thelower plane of said body. The bolt is provided Witha fin 16 immediatelybelow its head, which engages with the recess in the perforation oropening in the bowed spring.

A bobbin-catch plate 20 is fitted removably in a longitudinal recess21,for1ned in the under side of the shuttle-body, the said recessextending from the usual slot or opening in the shuttle-body to theenlarged annular perforation in rear thereof. This catch-plate 20 hasits front end enlarged and provided with a vertical bearing-flange 21",which is preferably beveled at its outer side and provided with asegmental seat 22. The rear end of the bobbin-catch is provided with aneck 23, which is disposed at a right angle to the catch proper andfinally terminates in a perforated head 24, disposed at a right angle tothe neck and of such configuration as to fit within the annularenlargement at the lower end of the perforation in the shuttle-body.

The head rests against the washer, if the same be used or permitted toremain in position, or it may rest directly against the fiber of thewood of which the shuttle-body is composed, as will hereinafter appear.The under side of the head, like the washer, is grooved, as at 25. Thenut 26 is threaded on the lower end of the bolt, and has formed upon itsupper side the annular base 27, which is provided with superficial ribs28, so that when the nut is run up on the bolt and the latter is undertension from the spring 13 the said ribs will be caused to engage withthe grooves of the washer if the catch-plate be out of position or withthe grooves of the catch-plate if the same be in position.

It is understood that the catch is only used when bobbin-fillings areemployed; but the same may be left in position, if preferred. It isobvious, however, that it may be removed in order to lighten as much aspossible the weighted end of the shuttle.

When a bobbin is employed, the groove formed annularly in the head ofthe bobbin rests in the bearing-flange at the front end of thecatch-plate in a manner that will be obvious, so that said bobbin isretained in position. At the same time the spindle is free to beelevated with the bobbin thereon.

It will be observed that the outer or rear end of the catch-plate is ofa uniform width and affords no projecting shoulders or protrusions ofany kind that are calculated to catch the yarn or offer obstructions.

If, as it sometimes happens, the bobbin varies in size, so that whenlowered with the spindle into the shuttle-body it would naturally be outof alinement with the eye of the shuttle and thus obstruct the freerunning of the filling, it will be obvious that I have provided for sucha contingency by securing the catch and spring in position bya singlebolt, so that a compensation of these parts will take placethat is tosay, if the catch-plate were rigid, as would be the case if it weresecured direct to the shuttle-body independent of the spring, it wouldnot yield to any excess of size in the bobbin; but inasmuch as a singlebolt connects both the spring and the catch-plate it will be obviousthat any pressure on the catch-plate caused by the excess of size of thebobbin will cause the bolt to draw upon the spring, and the latter willcommensurately yield to such pressure, permitting the catch-plate tolower, yet not altering the position of the spindle with relation to theshuttle-body. It will furthermore be seen that the spring employed notonly serves its usual function of retaining the spindle in a raised or alowered position, but it also serves to draw the bolt upward and causethe flanged locking-nut to engage with the grooves of the catch-plate orthe washer, as the case may be, and retain the nut againstretrogression, and in addition serves to secure the catchplate inposition in a yielding manner. Thus it is obvious that the spring servesa threefold function not heretofore obtained.

I do not limit my invention to the precise details of constructionherein shown and described, but hold that I may make such variations inthe same as come within the knowledge of the skilled mechanic withoutdeparting from the spirit thereof or sacrificing any of its advantages.

I-Iaving described my invention, what I claim is- 1. The combinationwith a shuttle-body, of a catch-plate arranged thereunder and providedwith a perforation at its rear end,which end is seated in a recessformed in the under side of the shuttle-body,a bolt passing through theperforation and eXt-endin g below the plate, the spring interposedbetween the head of the bolt and the shuttle-body, and the lockingnut onthe lower end of the bolt below the catch-plate and within the recess ofthe shuttle-body, substantially as specified.

2. The combination with a shuttle-body and its spindle having an angularhead, of aspring secured upon the upper side of the shuttlebody andbearing upon the spindle-l1ead, said spring having a perforation formedtherein, the wall of which is provided with a notch, a bolt passedthrough the spring and through the shuttle-body and provided at one sideof its head with a fin for engaging the notch, a catch -plate having arear upwardly-disposed end terminating in a securing-plate seated in IIOthe recess in the shuttle-body and provided with a perforation forreceiving the bolt, and a locking-nut on the end of the bolt below theperforation and plate and within the recess mentioned, substantially asspecified.

3. The combination with a shuttle-body and its spindle having anangularhead, of a spring resting on the spindle-head and provided with aperforation, a bolt passed through the perforai ion and through theshuttle body, a catch-plate arranged on the under side of theshuttle-body and having a perforation to receive the lower end of thebolt, which lower end passes through and beyond this perforation, and alocking-nut on the lower end of the bolt retained in position by saidspring, substantially as specified.

4c, The combination with a shuttlebody and its spindle having an angularhead, of a bowed spring arranged upon the shuttle-body and having itsfront end bearing upon said head, said spring being provided with aperforation having an offset, a bolt having a fin passed through theperforation and engaging the offset, a catch-plate on the under side ofthe shuttle-body and having a perforation through and beyond which thebolt passes, a grooved washer arranged on the lower end of the boltabove the catch-plate, and a nut having superficial ribs upon that sideadjacent to the catch-plate for engaging grooves in the under side ofthe latter, substantially as specified.

5. The combination with a shuttlebody provided upon its under side witha recess and upon its upper side with a spring-receiving recess, aspindle having an angular head, of the spring arranged in the recess, acatchplate having a rear vertical neck, an angular head formed thereonand provided with a perforation, said head having grooves upon its underside, a bolt passing through the spring and through and beyond theperforation formed in the head of the catch-plate, and a ribbedlocking-nut arranged on the bolt under the head of the catch-plate andengaging the grooves formed therein, substantially as specified.

6'. The combination with a shuttle-body and its spindle having anangular head, of abowed spring arranged upon the shuttle-body and havingits front end bearing upon said head, said spring being provided with aperforation having an offset, a bolt having a fin passed through theperforation and shuttle-body and engaging the offset, a grooved washerarranged on the lower end of the bolt out of contact with the spring andprovided upon its upper side with ribs, and a nut located 011 the lowerend of the bolt and provided upon its upper side adjacent to the washerwith ribs for engaging the grooves of said washer, substantially asspecified.

In testimony whereof I affix my signature in presence of two witnesses.

ALFRED ISHERWOOD. iVitnesses:

THOMAS lsHERwooD, JAMES REED.

